VOIP phone system for 3 international offices required

I am in the process of setting up three new offices located in Geneva,
Athens and Dubai. The Geneva office will be the primary location. In
addition we will have appromimately 4 home locations served by
broadband lines probably ADSL.

In order to provide inter office voice communications I wish to
install VOIP telephones and connections but they should also support
PSTN lines alterntive routing for local country calls.

There will intitially be 5 to 6 people in geneva and 2-3 in each other
office as it comes online. Future growth would probably not exceed 15
- 20 people total across all locations.

Ideally we'll utilise broadband ADSL in each location although a
leased line my be available for internet connection in Geneva. Are
fixed Ip addresses a mandatory requirement for the offices AND the
home users?

As this is a new company we have no legacy systems and are open to
make the maximum use of our technology investment.

I am very familiar with existing PABX technology but am new to the
VOIP concept. My back ground is networking \ computing in the
financial markets.

Quick overview of whats out there seems to point to Avaya IP office
but I've also come across some bad reports, can anyone recommend a
solution they are actually using and are very happy with. Support and
maintenance in all locations is obviously a key issue.

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Bobsa wrote:
> I am in the process of setting up three new offices located in Geneva,
> Athens and Dubai. The Geneva office will be the primary location. In
> addition we will have appromimately 4 home locations served by
> broadband lines probably ADSL.

The last I heard, Internet was regulated in UAE/Dubai and the government
was blocking all VoIP (RTP/SDP) ports coming from the outside. Has that
changed recently?
> Quick overview of whats out there seems to point to Avaya IP office
> but I've also come across some bad reports, can anyone recommend a
> solution they are actually using and are very happy with. Support and
> maintenance in all locations is obviously a key issue.

Check out the open source (GPL'ed) Asterisk PBX athttp://www.asterisk.org It'll give you what you're asking for, and much
much more!

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Ankur Shah wrote:
> Bobsa wrote:
>> I am in the process of setting up three new offices located in Geneva,
>> Athens and Dubai. The Geneva office will be the primary location. In
>> addition we will have appromimately 4 home locations served by
>> broadband lines probably ADSL.
>
> The last I heard, Internet was regulated in UAE/Dubai and the government
> was blocking all VoIP (RTP/SDP) ports coming from the outside. Has that
> changed recently?

[HINT]
I guess they wouldn't know what kind of traffic you had if you shoved it
through a VPN.
>> Quick overview of whats out there seems to point to Avaya IP office
>> but I've also come across some bad reports, can anyone recommend a
>> solution they are actually using and are very happy with. Support and
>> maintenance in all locations is obviously a key issue.

I'm using it (Avaya IPO) for exactly what you suggest (see locations
below), and it works *very* well. They also have a range of smaller IPO's
than can be used at the branch offices - use an IPO403 at the base and the
401 or small office edition at your smaller branches. Join them all up with
a VPN network - take a look at the Draytek Vigor 2600 routers for this -
and you have a very cheap and extremely reliable solution.

Adie wrote:
> Ankur Shah wrote:
>> Bobsa wrote:
>>> I am in the process of setting up three new offices located in Geneva,
>>> Athens and Dubai. The Geneva office will be the primary location. In
>>> addition we will have appromimately 4 home locations served by
>>> broadband lines probably ADSL.
>>
>> The last I heard, Internet was regulated in UAE/Dubai and the government
>> was blocking all VoIP (RTP/SDP) ports coming from the outside. Has that
>> changed recently?
>
> [HINT]
> I guess they wouldn't know what kind of traffic you had if you shoved it
> through a VPN.

Oh hell, youre right it is *illegal*. Ive just shut down the operation
after readng this -

(Bobsa) wrote in message news:<>...
> Hi,
>
> I am in the process of setting up three new offices located in Geneva,
> Athens and Dubai. The Geneva office will be the primary location. In
> addition we will have appromimately 4 home locations served by
> broadband lines probably ADSL.
>
> In order to provide inter office voice communications I wish to
> install VOIP telephones and connections but they should also support
> PSTN lines alterntive routing for local country calls.
>
> There will intitially be 5 to 6 people in geneva and 2-3 in each other
> office as it comes online. Future growth would probably not exceed 15
> - 20 people total across all locations.
>
> Ideally we'll utilise broadband ADSL in each location although a
> leased line my be available for internet connection in Geneva. Are
> fixed Ip addresses a mandatory requirement for the offices AND the
> home users?
>
> As this is a new company we have no legacy systems and are open to
> make the maximum use of our technology investment.
>
> I am very familiar with existing PABX technology but am new to the
> VOIP concept. My back ground is networking \ computing in the
> financial markets.
>
> Quick overview of whats out there seems to point to Avaya IP office
> but I've also come across some bad reports, can anyone recommend a
> solution they are actually using and are very happy with. Support and
> maintenance in all locations is obviously a key issue.
>
> cheers
>
> rob

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